US7574239B2 - Handsfree car mounting kit - Google Patents

Handsfree car mounting kit Download PDF

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Publication number
US7574239B2
US7574239B2 US10/572,491 US57249104A US7574239B2 US 7574239 B2 US7574239 B2 US 7574239B2 US 57249104 A US57249104 A US 57249104A US 7574239 B2 US7574239 B2 US 7574239B2
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United States
Prior art keywords
headset
communications unit
bearing
mounting kit
coupled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/572,491
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US20070167185A1 (en
Inventor
Christian Bjerrum-Niese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GN Audio AS
Original Assignee
GN Netcom AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GN Netcom AS filed Critical GN Netcom AS
Assigned to GN NETCOM A/S reassignment GN NETCOM A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BJERRUM-NIESE, CHRISTIAN
Publication of US20070167185A1 publication Critical patent/US20070167185A1/en
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Publication of US7574239B2 publication Critical patent/US7574239B2/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
    • H04M1/6083—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle by interfacing with the vehicle audio system
    • H04M1/6091—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle by interfacing with the vehicle audio system including a wireless interface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0247—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for microphones or earphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/02—Details of telephonic subscriber devices including a Bluetooth interface

Definitions

  • the invention relates to a handsfree car mounting kit for a mobile telephone, said mobile telephone being coupled to a headset via a short range communications link, such as of the Bluetooth type, said mounting kit comprising a communications unit in a cabinet connected to a power supply, such as a 12 volts socket terminal in a vehicle, said cabinet having a bearing or a holder in which the headset may be placed and coupled to the communications unit, said cabinet containing a loudspeaker and a microphone.
  • the headset and the communications unit are two separate units, each having its own Bluetooth radio module, which operate independently of each other, but such that, as mentioned, the headset is switched off when it is arranged in the bearing of the communications unit.
  • a user carrying a headset on his ear operates the mobile telephone as a handsfree set when driving a car, of course, but over long distances there is hardly any doubt that it may be a strain to carry a headset on the ear for an extended period of time, also even though headsets today are manufactured in lightweight versions.
  • a handsfree car mounting kit as defined in the introductory portion of claim 1 is known from GB 2 277 422 A.
  • an object of the invention is to provide a handsfree car mounting kit including a headset which has a less complicated structure with passive components, while maintaining the same comfort as the handsfree kit mentioned above and defined in the introductory portion of claim 1 .
  • a handsfree car mounting kit of the type defined in the introductory portion of claim 1 , which is characterized in that an electrical connection to the headset is provided in the bearing or the holder, allowing the communications unit to be coupled to the electrical circuit of the headset.
  • the communications unit may be composed of passive components which may be controlled from the electrical circuits incorporated in the headset.
  • the communications unit may be composed of passive components which may be controlled from the electrical circuits incorporated in the headset.
  • nothing prevents the loudspeaker signal from being amplified by means of an incorporated amplifier.
  • the coupling of the communications unit may advantageously be made as stated in claim 2 in that the headset accommodates a switching circuit adapted to switch the electrical circuit for connection to the loudspeaker and the optional microphone of the communications unit when the headset is placed in the bearing, or for connection to the microphone and loudspeaker of the headset when the headset is removed from the bearing.
  • the electrical circuit of the headset is a digital signal processor having a Bluetooth radio module which optionally contains a noise reducing circuit, which ensures an optimum sound quality between the mobile telephone and the communications unit.
  • FIG. 1 shows the units incorporated according to the invention
  • FIG. 2 illustrates in block diagram form how the units of FIG. 1 cooperate.
  • the numeral 1 designates a communications unit according to the invention. It consists of a cabinet in which a loudspeaker 2 and a microphone 5 are incorporated. Further, the communications unit is equipped with a plug 3 , which is expediently a 12 volts plug for the cigarette lighter of a car.
  • the cabinet may optionally accommodate an amplifier (not shown) for amplifying the loudspeaker signal.
  • a headset 4 is arranged in a bearing in the cabinet, said headset being equipped with a microphone 10 and a loudspeaker 9 as well as an electrical circuit, as is well-known.
  • the bearing includes electrical connections to the headset in the form of two wires for the transfer of signals received from the headset to the loudspeaker of the communications unit, and, if the communications unit is provided with a microphone, two wires for the transfer of transmitted signals from the communications unit to the headset.
  • the bearing includes two wires for the charging of the headset.
  • FIG. 1 shows a mobile telephone 6 capable of communicating with the headset 4 via a short range communications link of the Bluetooth type.
  • the electrical circuits included in the headset in the form of a digital signal processor 7 comprising a Bluetooth radio module, are shown outside the headset.
  • the digital processor detects on a wire 8 that the headset has been connected to the communications unit 1 .
  • the digital signal processor now affects a switching circuit 11 , which may also be incorporated in the headset, in such a manner that the loudspeaker 2 and the optional microphone 5 of the communications unit are coupled to the headset, while the loudspeaker 9 and optionally the microphone 10 of the headset are switched off.
  • the switching circuit has two pairs of switches which are designated S 1 , S 2 and S 3 , S 4 .
  • the communications unit is coupled to the electrical circuit of the headset, said switches S 1 , S 2 being open and said switches S 3 , S 4 being closed, and thereby coupled to the mobile telephone 6 via the Bluetooth radio module of the headset.
  • the switches S 1 and S 2 will close (shown schematically in dashed line), while the switches S 3 and S 4 will open (shown schematically in dashed line), whereby the headset will operate as an ordinary headset.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A handsfree car mounting kit for a mobile telephone (6) coupled to a head-set (4) via a Bluetooth radio module consists of a passive communications unit (1), which has a loudspeaker and a microphone (5), optionally coupled to an amplifier, arranged in a cabinet which has a bearing or a holder on its outer side in which the headset (4) may be placed and connected electrically to the communications unit. Further, the cabinet is provided with a plug terminal for a 12 volts socket terminal (3), such as a cigarette lighter in a car. The headset (4), which has a digital signal processor (7) containing inter alia a Bluetooth radio module an optionally a noise reducing circuit, is coupled to the bearing or the holder in the communications unit such that it can detect the voltage applied to the communications unit, and by means of a switching circuit (11) it is possible to adapt the digital signal processor of the headset and the control knobs of the headset to function with the loud-speaker (2) and the microphone (5) of the communications unit. Hereby, a handsfree car mounting kit of a simple structure is provided, just using a few and simple components, and all the vital parts from the headset (4) may be switched to cooperate with the loudspeaker (2) and the micro-phone (5) of the communications unit.

Description

The invention relates to a handsfree car mounting kit for a mobile telephone, said mobile telephone being coupled to a headset via a short range communications link, such as of the Bluetooth type, said mounting kit comprising a communications unit in a cabinet connected to a power supply, such as a 12 volts socket terminal in a vehicle, said cabinet having a bearing or a holder in which the headset may be placed and coupled to the communications unit, said cabinet containing a loudspeaker and a microphone.
A similar car mounting kit is known from the company “FreeTop”. This known car mounting kit consists of a communications unit having an independent Bluetooth radio module, it being possible to mount a headset in the communications unit such that it may be charged via a 12 volts socket terminal of a car. When the headset is arranged in the bearing, it is switched off, and the communications unit takes over the function of the headset.
Thus, it is a system where the headset and the communications unit are two separate units, each having its own Bluetooth radio module, which operate independently of each other, but such that, as mentioned, the headset is switched off when it is arranged in the bearing of the communications unit.
It should be noted that a user carrying a headset on his ear operates the mobile telephone as a handsfree set when driving a car, of course, but over long distances there is hardly any doubt that it may be a strain to carry a headset on the ear for an extended period of time, also even though headsets today are manufactured in lightweight versions.
A handsfree car mounting kit as defined in the introductory portion of claim 1 is known from GB 2 277 422 A.
Now, an object of the invention is to provide a handsfree car mounting kit including a headset which has a less complicated structure with passive components, while maintaining the same comfort as the handsfree kit mentioned above and defined in the introductory portion of claim 1.
The object of the invention is achieved by a handsfree car mounting kit of the type defined in the introductory portion of claim 1, which is characterized in that an electrical connection to the headset is provided in the bearing or the holder, allowing the communications unit to be coupled to the electrical circuit of the headset.
Hereby, the communications unit may be composed of passive components which may be controlled from the electrical circuits incorporated in the headset. However, it should be noted in this connection that nothing prevents the loudspeaker signal from being amplified by means of an incorporated amplifier.
The coupling of the communications unit may advantageously be made as stated in claim 2 in that the headset accommodates a switching circuit adapted to switch the electrical circuit for connection to the loudspeaker and the optional microphone of the communications unit when the headset is placed in the bearing, or for connection to the microphone and loudspeaker of the headset when the headset is removed from the bearing.
As stated in claim 3, the electrical circuit of the headset is a digital signal processor having a Bluetooth radio module which optionally contains a noise reducing circuit, which ensures an optimum sound quality between the mobile telephone and the communications unit.
Further expedient embodiments of the invention are defined in claims 5 and 6.
The invention will now be explained more fully with reference to the drawing, in which
FIG. 1 shows the units incorporated according to the invention, while
FIG. 2 illustrates in block diagram form how the units of FIG. 1 cooperate.
In FIG. 1, the numeral 1 designates a communications unit according to the invention. It consists of a cabinet in which a loudspeaker 2 and a microphone 5 are incorporated. Further, the communications unit is equipped with a plug 3, which is expediently a 12 volts plug for the cigarette lighter of a car.
The cabinet may optionally accommodate an amplifier (not shown) for amplifying the loudspeaker signal.
As will additionally be seen in FIG. 1, a headset 4 is arranged in a bearing in the cabinet, said headset being equipped with a microphone 10 and a loudspeaker 9 as well as an electrical circuit, as is well-known.
Further, the bearing includes electrical connections to the headset in the form of two wires for the transfer of signals received from the headset to the loudspeaker of the communications unit, and, if the communications unit is provided with a microphone, two wires for the transfer of transmitted signals from the communications unit to the headset. In addition, the bearing includes two wires for the charging of the headset.
Finally, FIG. 1 shows a mobile telephone 6 capable of communicating with the headset 4 via a short range communications link of the Bluetooth type.
It will now be explained in connection with FIG. 2 how the units in FIG. 1 cooperate.
For the sake of clarity, the electrical circuits included in the headset in the form of a digital signal processor 7 comprising a Bluetooth radio module, are shown outside the headset.
At the moment when a headset is placed in the bearing or the holder, the digital processor detects on a wire 8 that the headset has been connected to the communications unit 1. The digital signal processor now affects a switching circuit 11, which may also be incorporated in the headset, in such a manner that the loudspeaker 2 and the optional microphone 5 of the communications unit are coupled to the headset, while the loudspeaker 9 and optionally the microphone 10 of the headset are switched off.
As will be seen in FIG. 2, the switching circuit has two pairs of switches which are designated S1, S2 and S3, S4. With the switches in the position shown in FIG. 2, the communications unit is coupled to the electrical circuit of the headset, said switches S1, S2 being open and said switches S3, S4 being closed, and thereby coupled to the mobile telephone 6 via the Bluetooth radio module of the headset.
If the headset is removed from the communications unit, the switches S1 and S2 will close (shown schematically in dashed line), while the switches S3 and S4 will open (shown schematically in dashed line), whereby the headset will operate as an ordinary headset.

Claims (7)

1. A handsfree car mounting kit for a mobile telephone said mobile telephone being coupled to a headset via a short range communications link, said headset including an electrical circuit specifically configured to switch its speaker output from internal to external, said mounting kit comprising a communications unit in a cabinet connected to a power supply, said cabinet having a bearing in which the headset may be placed and coupled to the communications unit, said cabinet containing a loudspeaker and a microphone, wherein an electrical connection to the headset is provided in the bearing, wherein the communications unit accommodates passive components that are directly responsive to said electrical circuit in the headset thereby causing said passive components in said bearing to receive the speaker output of said headset, when the headset is placed in the bearing.
2. A handsfree car mounting kit according to claim 1, wherein the electric circuit is a switching circuit adapted to re-direct the speaker output and the microphone input of the headset from the headset to the communications unit when the headset is placed in the bearing, or for re-connection to the microphone and speaker of the headset when the headset is removed from the bearing.
3. A handsfree car mounting kit according to claim 1, wherein the electrical circuit of the headset is a digital signal processor (7) having a Bluetooth radio module which contains a noise reducing circuit.
4. A handsfree car mounting kit according to claim 1, wherein the noise reducing circuit comprises an echo attenuating circuit which, when the headset is placed in the bearing, is adapted to be coupled to the communications unit.
5. A handsfree car mounting kit according to claim 1, wherein the headset has a plurality of control knobs, whose functions, when the headset is placed in the bearing of the communications unit, control the communications unit.
6. A handsfree car mounting kit according to claim 1, wherein the digital signal processor detects via an electrical connection in the bearing whether the headset is placed in it, and, if so, the digital signal processor adapts its properties to the characteristics of the communications unit.
7. A handsfree car mounting kit for a mobile telephone said mobile telephone being coupled to a headset via a short range communications link, said headset including an electrical circuit and a digital signal processor specifically configured to switch its inputs and outputs from internal to external and detect the operational characteristics of an external device receiving such inputs and outputs, said mounting kit comprising a communications unit in a cabinet connected to a power supply, said cabinet having a bearing in which the headset may be placed and coupled to the communications unit, said cabinet containing a speaker and a microphone, wherein an electrical connection to the headset is provided in the bearing, wherein the communications unit accommodates components which are entirely passive and without amplification, but are directly responsive to said electrical circuit in the headset thereby causing said passive components in said bearing to receive the speaker output of said headset, and wherein the digital signal processor adapts its properties to the passive characteristics of the communications unit when the headset is placed in the bearing, so that the amplitude of the inputs and outputs is matched to communications units of varying characteristics.
US10/572,491 2003-09-19 2004-09-16 Handsfree car mounting kit Expired - Fee Related US7574239B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK200301368A DK176420B1 (en) 2003-09-19 2003-09-19 Handsfree car mount kit
DKPA200301368 2003-09-19
PCT/DK2004/000618 WO2005029825A1 (en) 2003-09-19 2004-09-16 A handsfree car mounting kit

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US20070167185A1 US20070167185A1 (en) 2007-07-19
US7574239B2 true US7574239B2 (en) 2009-08-11

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US (1) US7574239B2 (en)
EP (1) EP1668874B1 (en)
CN (1) CN100571294C (en)
DK (1) DK176420B1 (en)
WO (1) WO2005029825A1 (en)

Cited By (5)

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Publication number Priority date Publication date Assignee Title
US20090068949A1 (en) * 2007-09-06 2009-03-12 Lien-Chen Lin Multifunctional bluetooth headset
WO2011083143A1 (en) 2010-01-08 2011-07-14 Gn Netcom A/S A personal conferencing device
US20130094687A1 (en) * 2011-10-07 2013-04-18 Halo2Cloud Llc Wireless speaker and retractable ear bud
US20130326208A1 (en) * 2012-05-31 2013-12-05 Kopin Corporation Headset Computer (HSC) with Docking Station and Dual Personality
US10123104B1 (en) * 2017-11-17 2018-11-06 Wistron Corporation Mobile device and wireless earphone

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JP4179552B2 (en) * 2003-12-18 2008-11-12 本田技研工業株式会社 Bluetooth terminal
TWM264774U (en) * 2004-07-08 2005-05-11 Celltrend Internat Co Ltd Combination of bluetooth earphone and bluetooth vehicle carrier
US7299076B2 (en) 2005-02-09 2007-11-20 Bose Corporation Vehicle communicating
EP1710990A1 (en) * 2005-04-04 2006-10-11 Global Target Enterprise INC. A hands-free apparatus working with bluetooth earphone
US20060234780A1 (en) * 2005-04-19 2006-10-19 Ramsden Martin H Speakerphone with detachable ear bud
US20070015537A1 (en) * 2005-07-14 2007-01-18 Scosche Industries, Inc. Wireless Hands-Free Audio Kit for Vehicle
US8031878B2 (en) 2005-07-28 2011-10-04 Bose Corporation Electronic interfacing with a head-mounted device
FR2895860A1 (en) * 2006-01-05 2007-07-06 Parrot Sa Holder for receiving e.g. mobile telephone`s autonomous Bluetooth type wireless earpiece, has plate axially movable in direction of introduction of earpiece in receptacle, between inserted and released positions
US7627352B2 (en) 2006-03-27 2009-12-01 Gauger Jr Daniel M Headset audio accessory
KR100835957B1 (en) * 2006-12-29 2008-06-09 삼성전자주식회사 System for playing of sound data and method thereof
US7920903B2 (en) 2007-01-04 2011-04-05 Bose Corporation Microphone techniques
CN101277131B (en) * 2007-03-28 2013-06-05 信和昌科技股份有限公司 Apparatus for jointing bluetooth earphone and sound-amplifying seat
EP2007120A1 (en) 2007-06-19 2008-12-24 Bury Sp.z.o.o Universal electronic device with a hands-free module and/or a GPS navigation system and a Bluetooth module, especially for automobile vehicles
US20120034936A1 (en) * 2007-08-02 2012-02-09 Sure Best Limited Associated communication apparatus
TW200908669A (en) * 2007-08-15 2009-02-16 Cotron Corp Stereo bluetooth headset
US8655417B2 (en) * 2008-03-21 2014-02-18 Pi-Fen Lin Video/audio playing apparatus with wireless signal transmission function and wireless video/audio transmission module thereof
US20110244927A1 (en) * 2010-03-31 2011-10-06 Nokia Corporation Apparatus and Method for Wireless Headsets
CN104025559B (en) 2011-12-30 2017-07-18 Gn奈康有限公司 Audio route is transmitted in comprehensive distributed network
TWI709322B (en) * 2017-12-28 2020-11-01 仁寶電腦工業股份有限公司 Opertation method of electonic system

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GB2277422A (en) 1993-03-23 1994-10-26 Universal Exchange Limited A headset accessory for a mobile telephone set
US6230029B1 (en) 1998-01-07 2001-05-08 Advanced Mobile Solutions, Inc. Modular wireless headset system
US20020072390A1 (en) * 2000-12-13 2002-06-13 Meridian Concepts, L.L.C. Cordless and wireless telephone docking station
EP1326410A1 (en) 2002-01-08 2003-07-09 CCM Europe Handsfree wireless communication system for handsfree communication between a user and a mobile phone

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GB2277422A (en) 1993-03-23 1994-10-26 Universal Exchange Limited A headset accessory for a mobile telephone set
US6230029B1 (en) 1998-01-07 2001-05-08 Advanced Mobile Solutions, Inc. Modular wireless headset system
US20020072390A1 (en) * 2000-12-13 2002-06-13 Meridian Concepts, L.L.C. Cordless and wireless telephone docking station
EP1326410A1 (en) 2002-01-08 2003-07-09 CCM Europe Handsfree wireless communication system for handsfree communication between a user and a mobile phone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090068949A1 (en) * 2007-09-06 2009-03-12 Lien-Chen Lin Multifunctional bluetooth headset
WO2011083143A1 (en) 2010-01-08 2011-07-14 Gn Netcom A/S A personal conferencing device
US20130094687A1 (en) * 2011-10-07 2013-04-18 Halo2Cloud Llc Wireless speaker and retractable ear bud
US9319766B2 (en) * 2011-10-07 2016-04-19 Halo2Cloud Llc Wireless speaker and retractable ear bud
US20130326208A1 (en) * 2012-05-31 2013-12-05 Kopin Corporation Headset Computer (HSC) with Docking Station and Dual Personality
US9378028B2 (en) * 2012-05-31 2016-06-28 Kopin Corporation Headset computer (HSC) with docking station and dual personality
US10123104B1 (en) * 2017-11-17 2018-11-06 Wistron Corporation Mobile device and wireless earphone

Also Published As

Publication number Publication date
CN100571294C (en) 2009-12-16
EP1668874A1 (en) 2006-06-14
US20070167185A1 (en) 2007-07-19
WO2005029825A1 (en) 2005-03-31
DK176420B1 (en) 2008-01-28
EP1668874B1 (en) 2012-06-06
DK200301368A (en) 2005-03-20
CN1853403A (en) 2006-10-25

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Effective date: 20170811